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Carol Mitchell-Lisle Carol Mitchell-Lisle

Carol Mitchell-Lisle - PowerPoint Presentation

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Uploaded On 2017-05-25

Carol Mitchell-Lisle - PPT Presentation

Big Garden Beak Watch David Fuller Big Garden Beak Watch Carol MitchellLisle Ian Davidson Dave Adamson Deformity type All species Blue Tit Blackbird Starling Great Tit Both mandibles overgrown ID: 552146

garden beak mitchell species beak garden species mitchell lisle big watch mandible carol deformity

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Presentation Transcript

Slide1

Carol Mitchell-Lisle

Big Garden Beak Watch

David Fuller

Big Garden Beak WatchSlide2

Carol Mitchell-LisleSlide3

Ian DavidsonSlide4

Dave Adamson

Deformity type

All species

Blue Tit

Blackbird

Starling

Great Tit

Both mandibles overgrown

164

73

10

28

21

Crossed mandibles

133492418Fractured beak6104200Gap between closed mandibles3111911Lateral curvature3121420Lower mandible overgrown70202772Other type323802Upper mandible overgrown22288291717 7442361735651

Types of beak deformities

Why?Slide5

Roger PeartSlide6

Brian SealySlide7

Susan LooseSlide8

Species affected

Species

Number of records

Ave weekly count per garden

Beak Deformity Rate (BDR)

Blue Tit

214

2.800

76.43

Blackbird

147

2.655

55.37

Starling

523.83813.55Great Tit481.80626.58Woodpigeon312.23113.893Rook300.299100.33Jackdaw181.12416.01House Sparrow164.9403.239Robin161.22113.10Chris Gomersall